Automatic train-stop.



E. G. KELLER AUTOMATIC TRAIN STOP. APPLICATION FILED FEB. s. 1916.

Patent-ed Aug. 7, 1917.

witnesses E. G. KELLER.

AUTOMATIC TRAIN STOP.

I APPLICATION FILED FEB. 5,1916- 1,236,3M., Patented Aug. 7, 1917.

3 SHEETSSHEET Z.

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E. G. KELLER;

AUTOMATIC TRAIN STOP.

APPLICATION FILED FEB. 5. 1916.

1 ,236,3 1 I Patented Aug. 7, 1917.

3 SHEETS-SHEET 3.

ERNEST G. KELLER, OF BEACON, NEW YORK.

AUTOMATIC TRAIN-STOP.

Application filed February 5, 1916.

To all whom it may concern:

Be it known that I, Eimns'r G. KELLER, a citizen of the Republic of Switzerland, re siding at Beacon, in the county of Dutchess and State of New York, have invented certain new and useful Improvements in Automatic Train-Stops; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to improvements automatic train stops.

The object of the present invention is to improve the construction of automatic train stops and to provide a simple, practical and eflicient automatic train stop designed for use on both steam and electric roads and capable of operation in connection with a switch, semaphore or other signal and adapt-=- ed should an engineer or motorman attempt to run past a signal set against him either at a switch, entrance of a block or other point to automatically cut off the power from the train and requiring the engineer to bring the train to a full stop before proceeding again under such steam or electric power.

A further object of the invention is to provide an automatic train stop equipped with train mechanism having a lever or member adapted to be actuated by a track device and capable of movement in either direction to operate the train mechanism so that there will be no liability of injury to the parts should the train mechanism come in contact with the track device when the train is moving in either direction.

lVith these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion and minor details of construction maybe resortedto without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawlngs Figure 1 is a plan view of a portion of a "track showing a track device constructed in accordance with this invention, and connected with a swltch,

Fig. 2 is a plan view of the tram mecha- .nism,

Specification of Letters Patent.

Patented Aug. *7, 1917.

Serial ,No. 76,462.

Fig. 3 is a longitudinal sectional view of the same and a portion of the track mechanism,

Fig. 4 is a transverse sectional view taken substantially on the line l4= of Fig. 3,

Fig. 5 is a transverse sectional view taken substantially on line 55 of Fig. 1,

Fig. 6 is a longitudinal sectional view of a portion of the automatic train stop illus trating the position of the parts after the train mechanism has been actuated by the track device,

Fig. 7 is a detail view of the switch stand,

Fig. 8 is a detail perspective view of the track device and the transverse connecting bar.

Like numerals of reference designate corresponding parts in the several figures of the drawings.

In the accompanying drawings in which is illustrated the preferred embodiment of the invention, the train mechanism which is adapted for use on steam and electric rail ways comprises in its construction a transversely disposed rock shaft 1 journaled in suitable bearings 2 of transversely alined upper bearing brackets 3 which are bolted or otherwise secured to the upper portion of the frame a of a locomotive or. other engine. The transverse rock shaft 1 which has mounted on it a spring 5 for normally urging it in one direction is equipped with an approximately L-shaped arm 6 having a depending portion 7 and an approximately horizontally disposed portion 8, the depend ing portion being pivoted by a pin 9 or other suitable pivot to one end of a connecting rod 10 supported by a horizontally projecting portion 11 of a bracket 12 and designed to be connected by any suitable means with an electric switch or with the throttle valve of a locomotive whereby when the rock shaft is rotated as hereinafter fully explained, the switch will be opened or the throttle valve closed to shut off the power fromthe locomotive or engine. The coiled spring 5 which is connected at its outer end with the adjacent bearing bracket at 18 is secured at its other end to a set collar 14: and it is adapted to urge the horizontally projecting arm or portion of the L-shaped arm 6 downwardly. The horizontally projecting portion 8 of the L-shaped arm is provided at its outer portion with a recess 15 forming a shoulder which is adapted to be engaged by a latch lever 16 for holding the rock shaft against movement after the same has been operated by a pivoted track device 17. The latch lever 16 is pivoted at a point intermediate of its ends by a pin or bolt 18 and it has upper and lower arms, the upper arm being arranged to engage the recess 15 as clearly illustrated in Fig. 6 of the drawings. The latch lever is urged in the direction of the horizontal portion of the L-shaped arm 6 by a coiled spring 19 secured at one end to the frame of the locomotive and connected at its other end to the lower arm of the latch lever by a pin 20 or other suitable fastening device. The upper and lower arms of the latch lever are also pivoted by upper and lower pins 21 and 22 to the inner ends of operating rods 23 and 2 1 extending to the ends of the locomotive to enable the mechanism to be reset from either end thereof by disengaging the latch lever from the arm 6 of the transverse rock shaft. By this construc tion it will be necessary for an engineer or motorman to bring his train to a full stop and leave his cab and reset the train mechanism in order to proceed under power.

The transverse rock shaft 1 is also provided with a straight approximately horizontal arm 25 having a bifurcated end 26 in which is pivoted by a pin 27 or other suit able pivot the upper ends of a pair of down wardly diverging angularly related links 28 provided at their lower portions with longitudinal slots 29 for the reception of pivots 30 of an approximately T shaped trip lever or member 31, which is mounted on a transverse shaft or rod 32 and which is adapted to be engaged by the track device 17 whereby the trip lever 01' member will be oscillated. The trip lever or member which may be located at any desired point along the transverse shaft or pivot rod is maintained inproper position by set collars and the said rod is secured at ends in brackets 34 which are secured to the frame of the locomotive at opposite sides thereof.

The pivots 30 of the oppositely projecting arms of the T-shaped lever are adapted to operate in the said slot and when the lever is in a central position as illustrated in Fig. 3 of the drawings, the opposite arms are in approximately a horizontal position and the centrally arranged arms depend in an approximately vertical position and when it is swung in either direction from such position by the track device one or the other of the oppositely disposed arms will be swung downwardly and will partially rotate the rock shaft while the pivot of the other of the said oppositely disposed arms will move upwardly in the slot of its coacting link. In this manner the train mechanism may be operated while the train is traveling in either direction and there will be no liability of injuring the train mechanism or the track mechanism. The centrally arranged depending arm of the trip lever is oppositely beveled at 35 and the pivoted track device which is adapted to swing transversely of the track has an oppositely beveled engaging portion or head 36 to coact with the depending portion of the lever or rocker member 31.

The track device is mounted in a casing or partial housing 37 which is pierced by a horizontalpivot bolt 38 and which is open at one end at 39 to permit the track device to swing downwardly to the horizontal position illustrated in Fig. 4: of the drawings and the opposite end wall is adapted to limit the upward movement of the track device. The pivoted track device is provided with a depending arm 39 arranged at substantially an obtuse angle to the body portion of the track device and connected by a. suitable pivot 10 to the inner end of a transversely disposed connecting rod &1.

The inner end 12 of the connecting rod is enlarged and bifurcated and the said connecting rod which is bent intermediate of its ends to arrange the outer end in a different transverse plane from the inner end, is pivoted to a depending arm 13 of a longitudinal rock shaft 441, journaled in spaced bearings a5 and in a bearing 46 at one end of the clamping bar 47. The clamping bar it with which the casing or housing is formed integral is provided at its terminal portions with suitable rail clamps consisting of recesses 48 and clamping jaws 49. The recesses are formed in enlarged terminal portions 50 of the clamping bar and the clamping plates are located at opposite sides of the recesses and engage the rails 51 of the main track 52. One of the outer jaws is provided with the bearing 46. The clamping bar 47 which is rigidly mounted beneath the rails 51 is provided at the bottom of the casing or housing with a slot 53 through which the depending angularly related arm 39 passes. The arm 4L3of the 1011- gitudinal rock shaft 14 is located at one end of the said rock shaft and the latter is provided at its other end portion with an arm 54 which is connected by a rod or bar 55 with movable switch rails 56. The switch rails 56 are connected by a bar 57 with a shaft 58 mounted in aswitch stand 59 and provided at its lower end with a crank 60 which is connected to the outer end of the transverse bar 57. The vertical shaft 58 is provided at its upper end with a suitable signal 61 and it has an operating lever 62 by means of which it is manually operated but it will be readily understood that the switch may be operated by any suitable means and the track mechanism is adapted for use in connection with any kind of a single or similar operating mechanism and that when the longitudinal rock shaft is partially rotated the track device will be moved. to and from a projecting position.

When a signal is set against a train or the switch is open the track device will be moved to a projecting position and it will in practice be located a suitable distance from a switch or other danger point to cause the train to be brought to a full stop before reaching the same.

What is claimed is 1. An automatic train stop including a trip lever or member adapted to be engaged and actuated by a track device, a rock shaft, an arm or member actuated by the rock shaft and designed to be connected with the train controlling means, an arm carried by the rock shaft, means for connecting the arm with the trip lever or member whereby a movement of the trip lever or member in either direction will move the arm in one direction, a latch arranged to lock the rock shaft against movement after the same has been operated and operating mechanism connected with the latch.

2. An automatic train stop including train mechanism comprising a rock shaft, a rod or member actuated by the rock shaft and designed to be connected with the train controlled means, a lever connected with the rock shaft and adapted to be operated by a track device, a latch lever fulcrumed at an intermediate point and arranged to lock the rock shaft against movement after the same has been operated and operating rods eX- tending from the opposite arms of the latch lever and designed to be located at the lower portion of a locomotive or motor so as to be operated from the track.

3. An automatic train stop including train mechanism comprising a rock shaft, a rod or member actuated by the rock shaft and designed to be connected with the train controlled means, a lever connected with the rock shaft and adapted to be operated by a track devicefan upright latch lever pivoted at an intermediate point to form upper and lower arms, the upper arm being arranged to lock the rock shaft against movement after the latter has been operated, longitudinal operating rods connected with the latch lever at the upper and lower arms thereof and a spring also connected with the latch lever for urging the upper arm in the direction of the rock shaft.

l. An automatic train stop including a rock shaft provided with an approximately L-shaped arm, a rod or bar connected with one end of the L-shaped arm and designed to be also connected with the controlling means of a train, the said arm being also provided at its other end with a notch, a latch lever arranged to engage the notch for locking the rock shaft against movement after the same has been operated, a movable lever or member arranged to be actuated by a track device and means for connecting the said lever or member with the rock shaft.

5. An automatic train stop including train mechanism comprising a rock shaft having an approximately L-shaped arm and a sub stantially straight arm, a rod or bar connected with one end of the L-shaped arm and designed to be also connected with the train controlling means, a spring actuated latch lever arranged to engage the L-shaped arm at the other end thereof for locking the rock shaft against movement after the same has been operated, operating means connected with the latch lever for releasing the rock shaft, a spring for urging the rock shaft in one direction, an approximately T-shaped. lever pivotally mounted below the substantially straight arm of the rock shaft and a pair of downwardly diverging links pivoted at their upper ends to the said substantially straight arms and having a slot and pivot connection with the T-shaped lever or member at opposite sides of the pivotal point thereof.

In testimony whereof I aflix my signature in presence of two witnesses.

ERNEST G. KELLER.

l/Vitnesses:

FREDERICK W'. HEANEY, SAMUEL K. PHILLIPS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

